Thill-coupling



(No Mode1.) A. C. KASBSON.

THILL GOUPLING.' A No. 260,876. Patented July 11, 1882.

K l y l/////// /l Ill UNITED STAT-Es PATENT OFFICE.

AMASA C. KASSON, OF MILWAUKEE, WISCONSIN.

ri-l|LL-coiJ-PLINc.v

SPECIFICATION forming part of Letters Patent No. 260,876, dated Application tiled October 17, 1881. (No model.)v

To all whom it may concern Beit known that I, AMASA C. KASSON, of

Milwaukee, in the county of Milwaukee and State ot' Wisconsin, have invented certain new and useful Improvements in 'Ihill-Gouplings; and I do hereby declare that the following is a full, clear, and exact description of theinventiou,whichwill enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanyingdrawings, and to the letters ot' reference marked thereon, which form a part of this'speciiication.

My invention relates to the couplings used to connect the thlls to the forward axle of wagons and bugges.

1t consists ot' a new method of forming and attaching the iexiblejoint used therein so as to make a strong, durable connection, and at the saine time afford large bearing-surfaces and means for tightening up the joint and preventing the rattling that forms a disagreeable attendant upon the-wear of the joint.

My improved device does entirely away with the necessity of using any rubber or spring.

In the accompanying drawings, Figure lis a view in perspective of my improved device. Fig. 2 is a vertical section, and Figs. 3 and 4 respectively are views in detail of each of the two halves of the joint. Y

Like letters denote like parts throughout the drawings.

A represents the curved strapattached to the under side of thethill. B is the strap attached to the under side of the wagon-axle. These terminate in the two heads D and E, which are fitted together so as to form a hingejoint, and are connected by the bolt a. The head D is provided upon its inner face with an annular projection, G, and has a circular recess, d, at its center. The head Eis provided with a circular projection, F, at its center, which its 'accurately into Y the recess d in D, and with an annular recess, H, into which the 4 5 annular projection G r tits accurately. The parts July 11, 1882.

| are held in position by means ot' the bolt a, which passes through the heads D and E at their centers. The bolt a is threaded and screws into one of the heads, and I usually provide a safety-nut outside to prevent the loosening ot' the bolt. In the face of the annular projection G, I provide an annular groove, c, to act as an oil well or reservoir, and in the face ot' head E, opposite to it, I provide small oil-wells b b b b by drilling shallow holes into the metal. Near the head Da'thimble or pocket, C, is formed upon the strap A in .such manner as to receive the end of' the lthill, curved to fit it, thereby hold-f ing the end of the shaft firmly, preventing it from splitting or fraying, and forming an appropriate finish. An oiling-orilice, is located so as to lead to the oil-chamber G and have itsfexterior opening covered by nut a.

In case from long use the parts wear loose the"'bolt can be turned up and tightened.. In this manner no rubber orsteel spring becomes necessary to hold the parts together and prevent shaking. It is immaterial whether the shaft-strap head-D is provided with the larger projection and the head E with the larger recess, or vice versa. All that is required is to have the projecting and recessed portions large and properly iitted, so that` there is in the draft ofthe vehicle nostrain caused upon the bolt. e

The thill-coupling herein described, consisting'ot' head D, having annular projection G, provided with annular groove c and central recess, d, and head E, having central circular projection, F, annular recess H, and oil-wells b, and-bolt a, substantially as set forth.

In testimony that I claim the foregoing as my own I aftix my signature inpresence Vof two witnesses.

v AMASA C. KASSON. XSl-itnesses:

ELE. BOLTUM,

.F. H. BoTTUM. 

